There are not a lot of guns that are good to dry fire. I know some guns can handle it like center fires. But in my opinion it's not good for the gun. You could dry fire a gun thousands of times with nothing happening or you can do it ten times with damage to the firing pin.
I would suggest getting some snap caps. They make them in just about every caliber and they are perfect for practicing trigger pull and gun operation.
Yea I need to invest in some snap caps, I just like to function test my guns after I strip and clean them before taking them out to shoot.